CN114472967A

CN114472967A - A equipment that is used for pressure measurement lug drilling of steam line

Info

Publication number: CN114472967A
Application number: CN202210263262.1A
Authority: CN
Inventors: 王继烈; 余求问; 周黎明; 杨兴桂
Original assignee: Hangzhou Steam Turbine Casting and Forging Co Ltd
Current assignee: Hangzhou Steam Turbine Casting and Forging Co Ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-05-13
Anticipated expiration: 2042-03-16
Also published as: CN114472967B

Abstract

The invention discloses a device for drilling a pressure measuring lug of a steam pipeline, which comprises: a support member; the limiting piece is connected with the supporting piece and is provided with a limiting hole, and the inner diameter of the limiting hole is larger than the outer diameter of the pressure measuring lug; the moving piece is movably arranged on the supporting piece; and the drill gun is connected with the moving piece, the length direction of a drill bit of the drill gun is overlapped with or approximately parallel to the central line of the limiting hole, and the drill bit of the drill gun can penetrate into the limiting hole. The limiting piece is sleeved on the pressure measuring lug. And starting the drilling gun, enabling the drill bit to enter the limiting hole through the drilling gun, and drilling the pressure measuring lug. The limiting part is arranged, and the limiting hole is formed in the limiting part, so that the pressure measuring lug can be conveniently sleeved with the limiting part, and the accuracy of drilling is guaranteed. Compared with the prior machine tool machining of the applicant, the efficiency is greatly improved and shortened to 10-20 minutes.

Description

A equipment that is used for pressure measurement lug drilling of steam line

Technical Field

The invention relates to the technical field of steam pipeline processing equipment, in particular to equipment for drilling a pressure measuring lug of a steam pipeline.

Background

The overflow and intake conduits are the main steam lines of an industrial drive steam turbine. The overflow pipeline is used for the steam turbine with the steam extraction function and is used for controlling the steam of the high-pressure chamber to the pressure of the medium-pressure chamber by utilizing the overflow valve. The steam inlet pipeline is applied to a steam turbine of a full-circumference steam inlet type and has the function of increasing the steam inlet quantity of a main steam valve. All the devices are provided with pressure measuring lugs, so that the temperature and pressure parameters of steam can be conveniently collected in field debugging and operation.

Because the pipeline needs to be subjected to acid pickling phosphorization and hydrostatic test after being welded, the internal pressure measuring hole of the pressure measuring lug needs to be processed after the pipeline is welded.

In the prior art, all utilize the lathe to process, but because the bulky of steam conduit, the position of pressure measurement lug is different, adds man-hour at the drilling machine, needs to correspond with the drill bit on the lathe, but can lead to unable clamping or clamping potential safety hazard occasionally because a plurality of pressure measurement lugs are in different positions. And the machine tool is used for processing about 2 hours, so the efficiency is low. In view of this, the applicant provides a device for drilling a pressure measuring lug of a steam pipeline, which avoids drilling the pressure measuring lug by using a machine tool, and has high efficiency and convenient use.

Disclosure of Invention

In order to solve the technical problem in at least one aspect in the background art, the invention provides a device for drilling a pressure measuring lug of a steam pipeline.

The invention provides a device for drilling a pressure measuring lug of a steam pipeline, which comprises:

a support member;

the limiting piece is connected with the supporting piece and is provided with a limiting hole, and the inner diameter of the limiting hole is larger than the outer diameter of the pressure measuring lug;

the moving piece is movably arranged on the supporting piece;

and the drill gun is connected with the moving piece, the length direction of a drill bit of the drill gun is overlapped with or approximately parallel to the central line of the limiting hole, and the drill bit of the drill gun can penetrate into the limiting hole.

Preferably, the limiting hole is in a step shape, and the inner diameter of one end, far away from the drill gun, of the limiting hole is larger.

Preferably, the apparatus further comprises a positioning part disposed on a moving path of the moving member to stop the moving member from moving.

Preferably, the positioning part includes:

a positioning plate movably connected with the supporting piece and positioned on the moving path of the moving piece;

and the positioning piece is used for fixing the positioning plate.

Preferably, the apparatus further comprises:

the clamping plate is arranged on one side, away from the drill gun, of the limiting piece;

and the tensioning part is used for driving the clamping plate to be close to or far away from the limiting part.

Preferably, the clamping plate is arc-shaped.

One side of the clamping plate close to the limiting part is provided with a flexible layer.

Preferably, the tightening part includes:

a connecting member;

the two screw rods are connected with the connecting piece at intervals;

and the two threaded pipes are respectively in threaded connection with the two threaded rods and are rotationally connected with the clamping plate.

Preferably, the connector comprises:

a fixing plate connected with the supporting member;

the sliding block can slide in the vertical direction on the fixing plate; wherein the screw rod is connected with the sliding block and is horizontally arranged;

and the fastening module is used for fixing the sliding block.

Preferably, the apparatus further comprises:

a base;

the clamping piece is arranged on the base;

and the matching piece can be clamped with the clamping piece and is arranged on the supporting piece.

The beneficial effects brought by one aspect of the invention are as follows:

the limiting piece is sleeved on the pressure measuring lug.

And starting the drilling gun, enabling the drill bit to enter the limiting hole through the drilling gun, and drilling the pressure measuring lug.

The limiting part is arranged, and the limiting hole is formed in the limiting part, so that the pressure measuring lug can be conveniently sleeved with the limiting part, and the accuracy of drilling is guaranteed.

Compared with the prior machine tool machining of the applicant, the efficiency is greatly improved and shortened to 10-20 minutes.

The applicant does not need to utilize a machine tool to process, the productivity of the machine tool is released, other workpieces can be processed by utilizing the machine tool, and the overall production efficiency of the applicant is improved.

Drawings

FIG. 1 is an axial view of the present disclosure;

FIG. 2 is a front view of the present disclosure;

FIG. 3 is an axial view of the present disclosure;

FIG. 4 is an axial view of the present disclosure;

FIG. 5 is an axial view of a limiter according to the present disclosure;

FIG. 6 is a schematic of a pressure tap previously machined by applicants using a machine tool;

fig. 7 is a schematic diagram of a vapor line.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in the present application may be combined with each other; the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 5, the present invention provides an apparatus for drilling a pressure tap of a steam line, comprising:

a support member 1; and the limiting part 2 is connected with the supporting part 1 and is provided with a limiting hole 201, and the inner diameter of the limiting hole 201 is larger than the outer diameter of the pressure measuring lug C.

A moving member 3 movably disposed on the support member 1; and the drill 4 is connected with the moving member 3, the length direction of a drill bit 401 of the drill 4 is coincident with or approximately parallel to the central line of the limiting hole 201, and the drill bit 401 of the drill 4 can penetrate into the limiting hole 201.

The limiting piece 2 is sleeved on the pressure measuring lug C.

And starting the drilling gun 4, enabling the drill bit 401 to enter the limiting hole 201 through the drilling gun 4, and drilling the pressure measuring lug C.

Set up locating part 2 to be equipped with spacing hole 201 on locating part 2, the convenience cover is on pressure measurement lug C, guarantees the drilling accuracy.

As a further improvement to the above embodiment, in one embodiment, the limiting hole 201 is stepped, and the inner diameter of the end far away from the drill 4 is larger. The pressure measuring lug C is suitable for pressure measuring lugs C with different outer diameters and has good adaptability.

As a further improvement of the above embodiment, in one embodiment, the apparatus further comprises a positioning portion provided on a moving path of the moving member 3 to stop the moving member 3 from moving. In order to control the drilling depth of the drill bit 401, the drill bit 401 is prevented from drilling too deep by providing the positioning portion.

As a further refinement of the above embodiment, in one embodiment, the positioning portion includes:

a positioning plate 5 movably connected with the supporting member 1 and located on a moving path of the moving member 3; and the positioning piece 6 is used for fixing the positioning plate 5. The positioning member 6 may be a bolt, and a plurality of threaded holes matched with the bolt may be formed on the supporting member 1. The bolt is installed on locating plate 5, utilizes bolt, screw hole to fix locating plate 5.

The position of the positioning plate 5 can be adjusted according to the requirements of different drilling depths of the pressure measuring lugs C, and then the positioning piece 6 is utilized for fixing.

Can set up the spout on support piece 1, let moving member 3, locating plate 5 all with spout sliding connection.

When the moving member 3 moves to contact with the positioning plate 5, the positioning plate 5 stops the moving member 3 and the drill gun 4 from continuing to advance, and the drilling is prevented from being too deep. Effectively controlling the drilling depth of the pressure measuring lug C.

As a further refinement of the above embodiment, in one implementation, the apparatus further comprises:

a clamping plate 7 arranged on one side of the limiting piece 2 away from the drill gun 4; and the tensioning part is used for driving the clamping plate 7 to be close to or far away from the limiting part 2. During the operation, let taut portion drive splint 7 centre gripping locating part 2, let locating part 2 cover on pressure measurement lug C, from both sides application of force, avoid steam conduit G to remove, guarantee drilling accuracy.

As a further improvement of the above described embodiment, in one embodiment the clamping plate 7 is arc-shaped. The steam pipeline G is conveniently attached to the steam pipeline G, and the steam pipeline G is conveniently clamped.

As a further improvement of the above-described embodiment, in one embodiment, a flexible layer 16 is provided on a side of the clamping plate 7 adjacent to the limiting member 2. The flexible layer 16 is in flexible contact with the steam pipeline G, so that the steam pipeline G is better extruded, and hard contact is avoided.

As a further refinement of the above embodiment, in one embodiment the tensioning part comprises:

a connecting member; two screw rods 8 which are connected with the connecting piece at intervals; and the two threaded pipes 9 are respectively in threaded connection with the two threaded rods 8 and are rotationally connected with the clamping plate 7.

The clamping plate 7 is driven to be close to or far away from the steam pipeline G by rotating the threaded pipe 9.

As a further refinement of the above embodiment, in one embodiment the connector comprises:

a fixing plate 10 connected to the supporting member 1; a slider 11 capable of sliding in a vertical direction on the fixing plate 10; wherein, the screw 8 is connected with the sliding block 11, and the screw 8 is horizontally arranged; and the fastening module 12 is used for fixing the sliding block 11. The fastening module 12 can be a bolt, the bolt is in threaded connection with the fixing plate 10 and is in rotary connection with the sliding block 11, the sliding block 11 and the screw rod 8 are driven to lift by rotating the bolt, the position of the clamping plate 7 is adjusted, and the steam pipeline G can be better clamped. Can the centre gripping steam conduit G of different grade type, not unidimensional, adaptability is good.

a base 13; a clamping piece 14 arranged on the base 13; a fitting member 15, which can be engaged with the engaging member 14, is disposed on the supporting member 1.

When the support piece is used, the support piece 1 can be placed on the base 13 through the matching piece 15 and the clamping piece 14, the support piece 1 is convenient to support, the hand holding is not needed, and the labor intensity of an operator is reduced. And after the operation is finished, taking down the operation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An apparatus for pressure tap drilling of a steam line, comprising:

a support member;

the moving piece is movably arranged on the supporting piece;

2. The pressure lug drilling device for the steam pipeline according to claim 1, wherein the limiting hole is in a step shape, and the inner diameter of one end far away from the drilling gun is larger.

3. The apparatus for pressure tap drilling of a steam line of claim 1, further comprising a positioning part disposed on a moving path of the moving member to prevent the moving member from moving.

4. The apparatus for pressure tap drilling of a steam line of claim 3, wherein the locating portion comprises:

and the positioning piece is used for fixing the positioning plate.

5. The apparatus for pressure tap drilling of a steam line of claim 1, further comprising:

6. The apparatus for pressure tap drilling of a steam line of claim 5, wherein the clamping plate is arc-shaped.

7. The apparatus according to claim 6, wherein the clamping plate is provided with a flexible layer on a side thereof adjacent to the retainer.

8. The apparatus for pressure tap drilling of a steam line of claim 5, wherein the tensioning portion comprises: